You are about to lose 1/5 - 1/6 of your stack through the blinds if you fold this and lose your blinds. While I'm not a huge fan of AT that's the hand you were dealt.

An arguement could be made for folding and then pushing any two from the SB or from LP when folded to. If this is AJ are you thinking about it and what about AT suited.

It would be nice to sit back and wait for a great hand but if you want a shot at making a deep run you have to take some shots in less than perfect places. Push it and hope for the best.